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Cadillac STS Forum - 2005 through 2012 Discussion, DI Noise on cold start up in Past Cadillac Vehicle Discussion; Just got home from work and its in the garage, started it up and now it didnt do it. It ...
  1. #16
    Ghost Deany is offline Cadillac Owners Enthusiast
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    Re: DI Noise on cold start up

    Just got home from work and its in the garage, started it up and now it didnt do it. It is intermittent so its hard to get it to do it consistently. I have the 2 videos and as retarded as this might sound i need the tech to listen to the 2 vids with headphones on the phone because getting the car to do it in person when i want it to, is next to impossible.

  2. #17
    EChas3's Avatar
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    Re: DI Noise on cold start up

    I bet it happens more frequently first start of the day. Leave the car overnight.

    Thoroughly document your claim and then you're covered even when the warranty expires. I had a Buick with an intermittant climate control issue (too cold on a long drive). It took 6 trips and three dealers, but finally I found one willing to dig all the way into it. By that time, I was out of warranty by mileage & months. No worries!

  3. #18
    Ghost Deany is offline Cadillac Owners Enthusiast
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    Re: DI Noise on cold start up

    Heres a real good clear vid of it http://www.youtube.com/watch?v=qGENl...ature=youtu.be

  4. #19
    1BadCadSTS's Avatar
    1BadCadSTS is online now Cadillac Owners Connoisseur
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    Again.

    Premature timing chain guide wear and timing chain stretch. Fix it or dump it but do I before it completely goes.

  5. #20
    Ghost Deany is offline Cadillac Owners Enthusiast
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    Dropping it off at 10am today. Are the timing chains so bad that theres a probability that the new one will either be bad at some point shortly after install or luckily fine with no issue?

  6. #21
    1BadCadSTS's Avatar
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    It's hit or miss. I know on the srx forum a member had them replaced 3 times. Others never.

  7. #22
    curtc's Avatar
    curtc is online now OCD - Obsessive Cadillac Disorder
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    Re: DI Noise on cold start up

    The issue isn't the chains or the guides...it's the PCV system...Reach out to SC2150, he is a member here that lurks in the 1st Gen CTS forum. He works with a company that has done extensive work on the 3.6L, they also offer a few performance add-on's that no one else produces for that motor. He should be able to help you out in regards to the issue that causes this, hell, look up threads of his and I bet you get some insight.
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  8. #23
    EChas3's Avatar
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    Re: DI Noise on cold start up

    Opinions vary. Curtc refers to a member that makes a convincing case but there were also a series of sub-standard chains and the guides have been redesigned. Ultimately, it's a design flaw that GM really should cover under warranty; pro-rata if nothing else.

  9. #24
    Ghost Deany is offline Cadillac Owners Enthusiast
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    Re: DI Noise on cold start up

    replacing the chain, let the tech hear it and he knew right away.

  10. #25
    curtc's Avatar
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    Re: DI Noise on cold start up

    Another 3.6 bites the dust...Hope it's covered under your warranty.

    I should be a Cadillac technician if my IT career doesn't pan out...Can diagnose these damn things over the interwebz!
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  11. #26
    Ghost Deany is offline Cadillac Owners Enthusiast
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    Re: DI Noise on cold start up

    Yea still under the b2b warranty its a 2011 with 35k on it. If this was out of warranty i would of traded it in.

  12. #27
    Ludacrisvp's Avatar
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    Clearly the timing chain issues still plague the 3.6L if the 2011 model with that few of miles has issues.

    Sent from my One

  13. #28
    EChas3's Avatar
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    Re: DI Noise on cold start up

    Curt - The 3.6 will eventually get fixed or replaced. IT will only get upgraded. Now that's job security!

  14. #29
    Guy.Seminerio is online now Cadillac Owners Connoisseur
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    Re: DI Noise on cold start up

    Yeah but I think it's a lot rarer. Good to see that after... What.. 7? 8 years? GM still hasn't solved the 3.6 liter v6 DI with DOHC mystery.

    ----------

    That's the problem with putting out substandard bs. Cadillac is well into the process of cleaning up their act and "reinventing" themselves, meanwhile, that damn engine is going to continue to tarnish the name of cadillac and GM as a whole for decades!! Look at the old northstars. They're still talked about negatively for reliability issues and those issues are long gone. Those cars are still around though.

    Man do I hope the 3.6 isn't crapping out in ATSs.

  15. #30
    1BadCadSTS's Avatar
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    I blew up an XTS loaner with 1800 miles. Ill never buy a 3.6. The 2.0 turbo ATS has my eye.

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